Open Source JavaScript Debuggers

ESA Provides a wrapper around the .NET scripting engine which adds support for hosting the scripting engine in a seperate AppDomain, and includes a Design-time environment for applications.

Jdptool is a debug and profiler tool which based on JPDA; It provide both swing based and browser based GUI. It has sophisticated debugger without user interfere. It also provide profiler to memory usage and threads with numerous new feature

Lio is a javascript logger. There is only one file to solute any thing about log.

Project that allows you to edit various files on a server through your web browser. Has syntax highlighting, and eventually will beable to debug php files through it's interface You can see a sample here: http://www.phpwebbug.org/TestClient/

Xun Bug is an application for debug and profiling javascript code. It is a powerful tool supports most of mobile browser such as iPhone,Android,BlackBerry,Windows Mobile and Symbian. There is no need to install plugins in your browser. With the debug tool of Xun bug,you can set breakpoint,watch call stacks,step and resume,watch expressions and so on. With the profile tool of Xun bug, you can get the javascript function call tree and every call's time ,you can also get the statistic of function calls.

This debugger for PHP gives you the ability to inspect and understand what is going on in your application.